3644281 has 9 divisors (see below), whose sum is σ = 3856069. Its totient is φ = 3443836.

The previous prime is 3644279. The next prime is 3644297. The reversal of 3644281 is 1824463.

The square root of 3644281 is 1909.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 3644281 - 2¹ = 3644279 is a prime.

It is a super-2 number, since 2×3644281² = 26561568013922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3644231) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 43866 + ... + 43948.

Almost surely, 2^3644281 is an apocalyptic number.

3644281 is the 1909-th square number.

3644281 is the 955-th centered octagonal number.

It is an amenable number.

3644281 is a deficient number, since it is larger than the sum of its proper divisors (211788).

3644281 is an frugal number, since it uses more digits than its factorization.

3644281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 106 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The cubic root of 3644281 is about 153.8877154186.

The spelling of 3644281 in words is "three million, six hundred forty-four thousand, two hundred eighty-one".